Driving tends to become a bore so our brain can lull us into blanking out for a bit. Whether we concentrate on surroundings or music on stereo, we may keep one eye on the road, but time does seem to stand still until we look at the clock. I had one instance where that occurred. Did i lose time or did my brain shut off for the duration? No clue. I have had dreams where i was very aware of not knowing how i got to where i was dreaming about. Some sort of lucid dream? Perhaps. Two particular dreams off hand i can think of were me 'waking up' in the woods and not knowing how i got there. The one it was very dark and silent, but my eyes were adjusted enough to see i was not near anything or anyone. The other reminded me of a UFO experience as when i 'woke', i was surrounded by what seemed like a storm. There were leaves swirling around me from the strong wind and light in the darkness surrounding me.